{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:56:49.034608", "data_source": "ERA5", "website": "http://wexa.jamstec.go.jp", "Author": "Patrick Martineau"}, "event_id": {"name": "Event ID", "description": "A unique identifier based on: beginning_date, end_date, longitude, and latitude", "value": "2014-Jul-11_to_2014-Jul-13_126.5_43.5"}, "event_label": {"name": "Event label", "description": "Integer-valued grid identifier that uniquely labels each detected extreme event in space and time, consistent with the corresponding labels stored in the NetCDF dataset.", "value": 2014070000576}, "status": {"name": "Status", "description": "An ongoing event denotes an event that lasts up to the latest data available. These events are subject to change as newer data is added.", "value": false}, "start_date": {"name": "Start date", "description": "First date on which grid points are under the influence of an event", "value": "July 11 2014"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 13 2014"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 3}, "figures_available": {"name": "Figures available", "description": "True if figures were pre-generated for this event", "value": true}, "detection_var": {"name": "Detection variable", "description": "Variable used for the detection scheme", "value": "t2m"}, "event_type": {"name": "Event type", "description": "Type of the event detected", "value": "Cold spell"}, "area": {"name": "Area", "description": "The area (in square meters) encompassing all grid points under the influence of an event during its lifetime.", "value": 54454.077815936245}, "countries_affected": {"name": "Countries affected", "description": "The ArcGIS geocoding API (https://developers.arcgis.com/rest/geocode/) is used to obtain a list of all the countries affected by an event during its lifetime.", "value": ["China"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.Asia"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Asia"]}, "oceans_affected": {"name": "Ocean basins affected", "description": "The ArcGIS geocoding API (https://developers.arcgis.com/rest/geocode/) is used to obtain a list of all the ocean basins affected by an event during its lifetime.", "value": []}, "center_lat": {"name": "Center latitude", "description": "Latitude of the maximum time-integrated standardized t2m anomalies. Only t2m of the same polarity as the events are considered (positive T2m for a HW, for instance). The centre is thus representative of both the severity and persistence of anomalies.", "value": 43.5}, "center_lon": {"name": "Center longitude", "description": "Longitude of the maximum time-integrated standardized t2m anomalies. Only t2m of the same polarity as the events are considered (positive T2m for a HW, for instance). The centre is thus representative of both the severity and persistence of anomalies.", "value": 126.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "126.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 124.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 128.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 41.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 44.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2014-07-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[124.47, 43.03], [124.82, 43.18], [124.85, 43.25], [124.75, 43.5], [124.97, 44.03], [125.5, 44.25], [125.75, 44.15], [126.0, 44.25], [126.25, 44.15], [126.32, 44.18], [126.35, 44.25], [126.25, 44.5], [126.47, 45.03], [127.0, 45.25], [127.53, 45.03], [127.75, 44.5], [127.65, 44.25], [127.75, 44.0], [127.65, 43.75], [127.68, 43.68], [128.03, 43.53], [128.25, 43.0], [128.15, 42.75], [128.18, 42.68], [128.53, 42.53], [128.75, 42.0], [128.53, 41.47], [128.0, 41.25], [127.75, 41.35], [127.5, 41.25], [127.25, 41.35], [127.0, 41.25], [126.75, 41.35], [126.5, 41.25], [126.25, 41.35], [126.0, 41.25], [125.75, 41.35], [125.5, 41.25], [125.25, 41.35], [125.0, 41.25], [124.47, 41.47], [124.25, 42.0], [124.35, 42.25], [124.25, 42.5], [124.47, 43.03]]]]}, "2014-07-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[124.47, 43.03], [124.82, 43.18], [124.85, 43.25], [124.75, 43.5], [124.97, 44.03], [125.5, 44.25], [125.75, 44.15], [126.0, 44.25], [126.25, 44.15], [126.32, 44.18], [126.35, 44.25], [126.25, 44.5], [126.47, 45.03], [127.0, 45.25], [127.53, 45.03], [127.75, 44.5], [127.65, 44.25], [127.75, 44.0], [127.65, 43.75], [127.68, 43.68], [128.03, 43.53], [128.25, 43.0], [128.15, 42.75], [128.18, 42.68], [128.53, 42.53], [128.75, 42.0], [128.53, 41.47], [128.0, 41.25], [127.75, 41.35], [127.5, 41.25], [127.25, 41.35], [127.0, 41.25], [126.75, 41.35], [126.5, 41.25], [126.25, 41.35], [126.0, 41.25], [125.75, 41.35], [125.5, 41.25], [125.25, 41.35], [125.0, 41.25], [124.47, 41.47], [124.25, 42.0], [124.35, 42.25], [124.25, 42.5], [124.47, 43.03]]]]}, "2014-07-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[124.47, 43.03], [124.82, 43.18], [124.85, 43.25], [124.75, 43.5], [124.97, 44.03], [125.5, 44.25], [125.75, 44.15], [126.0, 44.25], [126.25, 44.15], [126.32, 44.18], [126.35, 44.25], [126.25, 44.5], [126.47, 45.03], [127.0, 45.25], [127.53, 45.03], [127.75, 44.5], [127.65, 44.25], [127.75, 44.0], [127.65, 43.75], [127.68, 43.68], [128.03, 43.53], [128.25, 43.0], [128.15, 42.75], [128.18, 42.68], [128.53, 42.53], [128.75, 42.0], [128.53, 41.47], [128.0, 41.25], [127.75, 41.35], [127.5, 41.25], [127.25, 41.35], [127.0, 41.25], [126.75, 41.35], [126.5, 41.25], [126.25, 41.35], [126.0, 41.25], [125.75, 41.35], [125.5, 41.25], [125.25, 41.35], [125.0, 41.25], [124.47, 41.47], [124.25, 42.0], [124.35, 42.25], [124.25, 42.5], [124.47, 43.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -4.063768803140988}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -3.157588580933701}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [18.82584945211005, 18.866428179526793, 18.93916658084862]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [13.780403687713658, 14.77836344874953, 14.528415423138824]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-3.1560898509504725, -3.1727213790021978, -3.1439545128484334]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-3.5331676565031103, -4.063768803140988, -3.853980441791805]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.5309888072175284, -1.5823604064522796, -1.5960895220733018]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.8833814892858942, -1.834330186923883, -1.7976231402791094]}}